This inventor holds 6 USPTO granted patents and 1 EPO patent. Top assignees: The Fox Group, Inc., Technologies and Deviles International, Inc.. Active years: 2002-2006.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
5 out of 14 
1 out of 1 Years Active: 2002-2006
Title: **Heikki I Helava: Innovator in Semiconductor Technologies**
Introduction
Heikki I Helava is a notable inventor based in Piedmont, California, recognized for his contributions to the field of semiconductor technologies. With a total of six patents to his name, Helava's innovations play a critical role in the growth of nitride single crystals and the fabrication of advanced p-n heterojunction devices.
Latest Patents
Among his latest patents, Helava has developed a **Tantalum Based Crucible**, designed to maintain thermal stability at high temperatures suitable for the growth of large, bulk AlN, AlGaN, or other nitride single crystals. This unique crucible, made from specially treated tantalum, undergoes carburization to withstand high temperatures without deformation. The subsequent treatment with a layer of TaN protects the surfaces exposed to nitride vapors during crystal growth. Moreover, he has patented a **Method for Fabricating a P-N Heterojunction Device Utilizing HVPE Grown III-V Compound Layers**, which enables the creation of devices composed of n-type and p-type layers. This method allows for the direct growth of the device on a variety of substrates, showcasing Helava's innovative approach to semiconductor fabrication.
Career Highlights
Heikki I Helava has been affiliated with organizations such as The Fox Group, Inc. and Technologies and Devices International, Inc., where his expertise in semiconductor technology has been instrumental in shaping new advancements. His work is characterized by a commitment to enhancing device performance and reliability, contributing to the progress in the field of materials science and engineering.
Collaborations
Throughout his career, Helava has collaborated with notable peers in the industry, including Mark Grigorievich Ramm and Yury Alexandrovich Vodakov. These partnerships have facilitated significant advancements in semiconductor technology, underscoring the importance of collaboration in achieving innovative solutions.
Conclusion
Heikki I Helava's contributions to the field of semiconductor technologies reflect his innovative spirit and commitment to advancing materials science. With his latest patents, he continues to shape the future of device fabrication and growth of nitride single crystals, leaving a lasting impact on the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile